Widow - I think this is your first vaccine thread, so I am trying to be patient with you. Don't push it 
For those hard of understanding among us, this was the conversation:
Heebiejeebie Sat 27-Apr-13 11:35:48
Theoretically.... if (if) autism relates to a deficiency of mirror neurones, then the loss of those neurones could be an auto-immune process, like the loss of insulin-producing islet cells in type 1 diabetes. The latter can be triggered by trivial infections. So, autism might be triggered by things activating the immune system, like viruses or vaccines. But even if it were a vaccine that triggers the process in an individual, it could be that their innate succeptibilty means SOMETHING would have inevitably triggered the process, vaccine or no vaccine.
CoteDAzur Sat 27-Apr-13 11:40:24
"SOMETHING would have inevitably triggered the process"
Except that people in their 30s and 40s don't regress and become autistic.
Would you not say that it looks like there could be a vulnerable period (toddler/early childhood) where such triggers happen?
Raspberrysorbet Sat 27-Apr-13 11:49:52
Toddlerhood is a time when the brain is developing at a rate of knots. I wonder if this contributes to vulnerability?
CoteDAzur Sat 27-Apr-13 11:55:25
And if that is so, than regression of vulnerable people isn't inevitable. You just need to be careful for a short period when they are small. Delaying and/or separating group vaccines into singles and spreading them over time would presumably help in this situation, which is what researchers jimjams is quoting seem to be saying.
Heebiejeebie Sat 27-Apr-13 12:01:55
If the vaccine can trigger auto-immunity then highly likely so would the infection (which looks the same to the immune system). Having 3 antigens to cope with at once is really not unusual for the system, is it?
..... which is when I said that the difference might be that childhood illnesses don't all happen at the same time.
It's not a "crackpot theory" to point out that no child gets measles, mumps, and rubella at the same time, not to mention all childhood diseases within the same year.